We still think Maricopa County Supervisor Mary Rose Wilcox should leave office to do the public service she does best ? running one of the best Mexican restaurants in town ? but we've gotta admit, the lady does a pretty good job of multitasking. You'll often see Wilcox ? along with members of her family, and a rotating selection of politicians, lobbyists and other government types ? hanging out in the large booths in the corner of this casual restaurant just south of downtown. They're here for the political gossip, but also for the machaca, which is even hotter than the news of the latest mishap at the Legislature. We could make a meal out of the endless chips and hot salsa, but always try to save room for carne asada tacos.